Five-digit numbers

How many different five-digit numbers can be created from the numbers 2,3,5 if the number 2 appears in the number twice and the number 5 also twice?

Correct answer:

n =  30

Step-by-step explanation:

$n={\displaystyle \frac{5\cdot 4\cdot 3\cdot 2\cdot 1}{2\cdot 1\cdot 2\cdot 1}}=30$

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